Samuel rust



UNITED sTATEs PATENT oEEroE.

SAMUEL RUST, OF NFV YORK. N. Y.

SECTOR-PRESS.

Specification of Letters Patent No. 9,651, dated April 5, 1853.

To ol whom t may concern:

Be it known that I, SAMUEL RUST, of the city, county, and State of New York, have invented certain new and useful Improve'- ments in Sector-Presses for Compressing, Punching, Stamping, Cutting, or other Purposes for which Pressure is Required; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l, is a front view of a press for punching boiler iron, constructed according to my improvements. Fig. 2, is a vertical section through the center taken at right angles to Fig. 1. Fig. 3, is another vertical section in a plane parallel with Fig. 1, and Fig. 4t, is a partial sect-ion of the frame taken at the side of the working parts.

Similar letters of reference indicate corresponding parts in each of the several figures.

The nature of my improvements consists in the employment of two sectors working face to face one only being eccentric and the other an arc of a circle, the concentric sector working on a center or axis which is fixed during the pressing operation, and the eccentric sector having the punch or other appendage to which the motion is to be given to obtain the pressure, hinged to it at its center or axis, and having one or more bearing pieces attached of such form and in such position that as the sector is returned to relieve the punch or equivalent of the pressure the said piece or pieces will be brought in contact with a suitable rest or rest-s upon the press frame and by causing the axis of the sector to be drawn up or back in the opposite direction to that in which Vit moves to give the pressure, will raise or draw back the punch or other pressing appendage. The power is applied to the eccentric sector in order to make the operation of the two sectors infallible, and the axis of the concentric sector is allowed a certain amount of motion in the line of pressure to enable it to follow and keep in contact and work with the eccentric sector as it is relieved of the pressure.

The principal objects which I have in view, and which I accomplish by these improvements, are to dispense with the wedge or roller commonly employed bet-Ween the sectors, and also with the very powerful springs or equivalent devices employed to raise or withdraw the punch, or equivalent, and thus `simplify the construction.

It is well known that in punching heavy metal plate the punch remains so tightly fixed in the hole it has made as to require a very great amount of power to withdraw it, but by means of the bearing piece or pieces a moderate application of power to the lever or purchase which moves the sector will never fail to effect this.

I am aware thatsectors have been employed without the wedge and roller, but both have been made eccentric and when such is the case if the faces are plain and power is applied to one only, it is impossible to preventthem slipping from each other, it is therefore necessary either to make them toothed, which creates friction, or apply the power equally to both. I am also aware that an eccentric toothed sector and a pinion have been used in combination, and in thatcase the power hasI been applied to the pinion which is equivalent to the concentric sector; but I believe that two sectors with smooth faces have never been successfully employed without the wedge or roller, and further, that the only way in which that can be done is to make one eccentric and the other concentric, and apply the power to the former, by which a more simple press than any in use is produced.

In order to render the construct-ion and operation of my press more perfectly intelligible, I will proceed with the description, referring to the drawings.

A, is the frame which may be of any form best calculated for strength. B, is the punch which works vertically in a suitable guide in the frame-the piston, platen, or follower, will be similarly placed in other presses. C, is the eccentric sector hinged at its axis a, to the punch. D, is the concentric sector whose axis is formed by a pin Z), which while t-he pressure is being given bears in a suitable recess under the head E, in the same vert-ical plane as the center of the punch. The pin hangs in an eye-bolt d, which works vertically through the head E, and its ends fit easily in vertically elongated recesses c, c, between ribs in the sides of the frame. The sect-or D, is attached to the pin b, by light ears g, g. The pin may be hung in two eyebolts one at each end working similarly to d, then the recesses e, c, will not be necessary. The two sectors arev provided with locking pieces e, f, which bring them into proper relation with each other, after the withdrawal of the punch or its equivalent, in case through any irregularity they should work out of place.

F, F, are two bearing pieces for withdrawing the punch, they may be cast withk or be bolted to the sector C, being both alike andy occupying corresponding positions, iz., it, are shoulders on the frame A, for the bearing pieces E, F, to act upon. If only one bearing piece is used it will be placed in front of the sector near the center of the press and will act upon a rest in front of the punch or pressing apparatus. H, is a lever which is shaped at its end in a suitable manner to be easily shipped and unshipped in a recess in the back of the sector C, and is for the purpose of applying the power to work the press.

vVhen the punch is raised the lever H, occupies the upward position shown in the drawings. To apply the pressure,the weight of the operator is applied to the lever to bring it and the sectors to the position shown in Fig. 2, in red color. The raising of the lever to relieve the sectors throws down the bea-ring pieces F, F, upon the rests It, L, and the latter serve as a fulcrum to the hearing` pieces and enable thein to raise the punch; it is obvious that with a long lever great power may be applied in raising the punch, without much effort on the part of the operator.

In case the bearings F, F, do not at all points or parts raise t-he sector C, exactly to keep up tight against the top sector D, by the striking of the punch or otherwise, I have made the axes Zi, to move in the line of the pressure to or from the axes a., this movement being allowed, the weight of D, will always keep its face in contact with C, and the latter cannot return as the lever is raised without causing` D, to do the same and therefore can not work cut of proper relation to each other to a greater extent than the locking pieces f, e, will adjust.

What l claim as my invention and desire to secure by Letters Patent, isd

l. One or more bearing pieces F, F, at the sides or in front of the eccentric sector C, acting upon any Xed point or rest as at it, it, on the press frame, for the purpose of raising or withdrawing the punch or pressn ing appendage, by power applied to the sect-0I' in the reverse direction to that by which the pressure is given substantially in the manner speciiied.

2. I claim allowing to the concentric sector a suticient amount of motion directly in the line of the pressure to enable it to follow and always keep in contact and in proper relation to the eccentric sector substantially as herein set forth.

SAMUEL RUST. Witnesses:

O. D. MUNN, S. H. Werne. 

